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Refactor UI logger (more work needed)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,143 @@ | ||
| // | ||
| // StyledLogger.swift | ||
| // Twackup | ||
| // | ||
| // Created by Daniil on 19.06.2024. | ||
| // | ||
|
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| import StyledTextKit | ||
|
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| actor StyledLogger: FFILoggerSubscriber { | ||
| struct RenderOptions { | ||
| let boldFont: UIFont | ||
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| let monospacedFont: UIFont | ||
|
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| let color: UIColor | ||
| } | ||
|
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| struct RenderIssue: Error { | ||
| init() { | ||
| } | ||
| } | ||
|
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| struct RenderResult { | ||
| let image: CGImage | ||
|
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| let size: CGSize | ||
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| let scale: CGFloat | ||
|
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| let insets: UIEdgeInsets | ||
| } | ||
|
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| private let uuid = UUID() | ||
|
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| private let builder = StyledTextBuilder(text: "") | ||
|
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| private var cachedRenderer: StyledTextRenderer? | ||
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| private(set) var wantsRerender = false | ||
|
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| let renderOptions: RenderOptions = { | ||
| let systemSize = UIFont.systemFontSize | ||
| let bold = UIFont.boldSystemFont(ofSize: systemSize) | ||
| let monospaced = UIFont.monospacedSystemFont(ofSize: systemSize, weight: .regular) | ||
| return RenderOptions(boldFont: bold, monospacedFont: monospaced, color: .label) | ||
| }() | ||
|
|
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| init() { | ||
| Task { | ||
| await FFILogger.shared.addSubscriber(self) | ||
| } | ||
| } | ||
|
|
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| deinit { | ||
| Task { | ||
| await FFILogger.shared.removeSubscriber(self) | ||
| } | ||
| } | ||
|
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| func render(for width: CGFloat, contentSizeCategory: UIContentSizeCategory) throws -> RenderResult { | ||
| if wantsRerender { | ||
| wantsRerender = false | ||
| cachedRenderer = nil | ||
| } | ||
|
|
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| if let cachedRenderer { | ||
| let cachedResult = cachedRenderer.cachedRender(for: width) | ||
| if let cachedImage = cachedResult.image, let cachedSize = cachedResult.size { | ||
| return RenderResult( | ||
| image: cachedImage, | ||
| size: cachedSize, | ||
| scale: cachedRenderer.scale, | ||
| insets: cachedRenderer.inset | ||
| ) | ||
| } | ||
| } | ||
|
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| let renderer = StyledTextRenderer(string: builder.build(), contentSizeCategory: contentSizeCategory) | ||
| cachedRenderer = renderer | ||
|
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| let (image, size) = renderer.render(for: width) | ||
| guard let image else { | ||
| throw RenderIssue() | ||
| } | ||
|
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| return RenderResult( | ||
| image: image, | ||
| size: size, | ||
| scale: renderer.scale, | ||
| insets: renderer.inset | ||
| ) | ||
| } | ||
|
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| func render(for width: CGFloat, contentSizeCategory: UIContentSizeCategory) async throws -> RenderResult { | ||
| try await withCheckedThrowingContinuation { continuation in | ||
| continuation.resume(with: Result { | ||
| try render(for: width, contentSizeCategory: contentSizeCategory) | ||
| }) | ||
| } | ||
| } | ||
|
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| // MARK: - FFILoggerSubscriber | ||
|
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| func log(message: FFILogger.Message, level: FFILogger.Level) async { | ||
| let targetColor: UIColor = switch level { | ||
| case .off: .clear | ||
| case .debug: .systemIndigo | ||
| case .info: .systemBlue | ||
| case .warning: .systemOrange | ||
| case .error: .systemRed | ||
| } | ||
|
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| builder.add(text: "[\(message.target ?? "nil")] ", attributes: [ | ||
| .font: renderOptions.boldFont, | ||
| .foregroundColor: targetColor | ||
| ]) | ||
|
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| builder.add(text: message.text, attributes: [ | ||
| .font: renderOptions.monospacedFont, | ||
| .foregroundColor: renderOptions.color | ||
| ]) | ||
|
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| builder.add(text: "\n") | ||
|
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| wantsRerender = true | ||
| } | ||
|
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| func flush() async { | ||
| builder.clearText() | ||
| wantsRerender = true | ||
| } | ||
|
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| // MARK: - Hashable | ||
|
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| static func == (lhs: StyledLogger, rhs: StyledLogger) -> Bool { | ||
| lhs.uuid == rhs.uuid | ||
| } | ||
|
|
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| nonisolated func hash(into hasher: inout Hasher) { | ||
| hasher.combine(uuid) | ||
| } | ||
| } |
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